Analysis
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max time kernel
42s -
max time network
51s -
platform
windows10-2004_x64 -
resource
win10v2004-20231130-en -
resource tags
arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system -
submitted
11-12-2023 14:17
Static task
static1
Behavioral task
behavioral1
Sample
Uqzqkjvjt.exe
Resource
win7-20231130-en
Behavioral task
behavioral2
Sample
Uqzqkjvjt.exe
Resource
win10v2004-20231130-en
General
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Target
Uqzqkjvjt.exe
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Size
667KB
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MD5
d840d8828c7d653df6e528c5839c58e1
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SHA1
2200c0209a437889afe3b268301fdfc467b70fd7
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SHA256
4a27c12a8f4fb92e14521406e64dee16c6e888ba8de479b56d273241f514883b
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SHA512
1fa04c5285db39fd177d6e5498d5af7e60bfb3446d9b756acfeed0d86121dd0e037feed483362a2a790e63a4559b073231147c4f974603be959327c286a6b608
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SSDEEP
12288:8JCwrKHetRgFqSFa7y0iL/M8GXem/rZcsMW2g7dyEL3uG5:aCJH3PTtD0/dclW20d+
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.asiaparadisehotel.com - Port:
587 - Username:
[email protected] - Password:
^b2ycDldex$@ - Email To:
[email protected]
Signatures
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Detect ZGRat V1 34 IoCs
Processes:
resource yara_rule behavioral2/memory/3016-2-0x0000000005180000-0x000000000522A000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-4-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-5-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-7-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-9-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-17-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-23-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-41-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-49-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-51-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-47-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-55-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-57-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-67-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-65-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-63-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-61-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-59-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-53-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-45-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-43-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-39-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-37-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-35-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-33-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-31-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-29-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-27-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-25-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-21-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-19-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-15-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-13-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 behavioral2/memory/3016-11-0x0000000005180000-0x0000000005223000-memory.dmp family_zgrat_v1 -
Reads user/profile data of local email clients 2 TTPs
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
Processes:
Uqzqkjvjt.exeRegAsm.exedescription ioc process Set value (str) \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\Mudnhtwci = "C:\\Users\\Admin\\AppData\\Roaming\\Mudnhtwci.exe" Uqzqkjvjt.exe Set value (str) \REGISTRY\USER\S-1-5-21-3936660601-1848837011-2142350499-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\M yApp = "C:\\Users\\Admin\\AppData\\Roaming\\M yApp\\M yApp.exe" RegAsm.exe -
Looks up external IP address via web service 1 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
Processes:
flow ioc 5 api.ipify.org -
Suspicious use of SetThreadContext 1 IoCs
Processes:
Uqzqkjvjt.exedescription pid process target process PID 3016 set thread context of 1404 3016 Uqzqkjvjt.exe RegAsm.exe -
Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 2568 1404 WerFault.exe RegAsm.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
Processes:
Uqzqkjvjt.exeRegAsm.exepid process 3016 Uqzqkjvjt.exe 3016 Uqzqkjvjt.exe 1404 RegAsm.exe 1404 RegAsm.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
Processes:
Uqzqkjvjt.exeRegAsm.exedescription pid process Token: SeDebugPrivilege 3016 Uqzqkjvjt.exe Token: SeDebugPrivilege 1404 RegAsm.exe -
Suspicious use of WriteProcessMemory 11 IoCs
Processes:
Uqzqkjvjt.exedescription pid process target process PID 3016 wrote to memory of 3224 3016 Uqzqkjvjt.exe RegAsm.exe PID 3016 wrote to memory of 3224 3016 Uqzqkjvjt.exe RegAsm.exe PID 3016 wrote to memory of 3224 3016 Uqzqkjvjt.exe RegAsm.exe PID 3016 wrote to memory of 1404 3016 Uqzqkjvjt.exe RegAsm.exe PID 3016 wrote to memory of 1404 3016 Uqzqkjvjt.exe RegAsm.exe PID 3016 wrote to memory of 1404 3016 Uqzqkjvjt.exe RegAsm.exe PID 3016 wrote to memory of 1404 3016 Uqzqkjvjt.exe RegAsm.exe PID 3016 wrote to memory of 1404 3016 Uqzqkjvjt.exe RegAsm.exe PID 3016 wrote to memory of 1404 3016 Uqzqkjvjt.exe RegAsm.exe PID 3016 wrote to memory of 1404 3016 Uqzqkjvjt.exe RegAsm.exe PID 3016 wrote to memory of 1404 3016 Uqzqkjvjt.exe RegAsm.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\Uqzqkjvjt.exe"C:\Users\Admin\AppData\Local\Temp\Uqzqkjvjt.exe"1⤵
- Adds Run key to start application
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:3016 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵
- Adds Run key to start application
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:1404 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1404 -s 19083⤵
- Program crash
PID:2568 -
C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exeC:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe2⤵PID:3224
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 1404 -ip 14041⤵PID:4032